Lamp



FIG. 1 is a perspective view.

FIG. 2 is a front elevation view.

FIG. 3 is a rear elevation view.

FIG. 4 is a left side elevation view.

FIG. 5 is a right side elevation view.

FIG. 6 is a top plan view; and,

FIG. 7 is a bottom plan view. 

The ornamental design for a lamp, as shown and described. 